CVE-2026-46103

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

can: ucan: fix devres lifetime

USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes).

Fix the control message buffer lifetime so that it is released on driver unbind.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
1.7%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 25, 2026

Advisory Details (8)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fed4626501c871890da287bec62a96e52da1af89
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cb2e41e87a2893345859440017e7178bf7a4c70d
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c524c124e3094d2de12235a513854c03d06a2b58
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c0d3ccc6929e4509076df8f30a4fb1dc5018b0ae
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a90f0815aaa9c629ac4750e7c71c357dd7f231d7
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3df5b9110ac08f67ccfe382fc172bfee95688eec
generic

can: ucan: fix devres lifetime - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/10b7b676b78a7bd888d19729b459aad7fc1f428b

Vendor Advisories for CVE-2026-46103(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 9× in last 7d / 54× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-13 22:30 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-11 23:27 UTCEG score recompute
  6. 2026-07-11 23:27 UTCVendor advisory
  7. 2026-07-11 23:27 UTCGHSA enrichment
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-08 23:48 UTCEG score recompute
  11. 2026-07-08 23:48 UTCVendor advisory
  12. 2026-07-08 23:48 UTCGHSA enrichment
  13. 2026-07-08 15:16 UTCEPSS rescore
  14. 2026-07-07 13:46 UTCEPSS rescore
  15. 2026-07-06 02:23 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-01 10:08 UTCEG score recompute
  19. 2026-07-01 10:08 UTCVendor advisory
  20. 2026-07-01 10:08 UTCGHSA enrichment
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-29 22:52 UTCEG score recompute
  23. 2026-06-29 22:52 UTCVendor advisory
  24. 2026-06-29 22:52 UTCGHSA enrichment
  25. 2026-06-28 22:50 UTCEG score recompute
Show 70 more
  1. 2026-06-28 22:50 UTCVendor advisory
  2. 2026-06-28 22:50 UTCGHSA enrichment
  3. 2026-06-28 14:07 UTCEPSS rescore
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-27 22:50 UTCEG score recompute▲ 5.50
  7. 2026-06-27 22:50 UTCVendor advisory
  8. 2026-06-27 22:50 UTCGHSA enrichment
  9. 2026-06-27 03:08 UTCEPSS rescore
  10. 2026-06-25 21:50 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  11. 2026-06-25 13:49 UTCEPSS rescore
  12. 2026-06-25 00:55 UTCVendor advisory
  13. 2026-06-25 00:55 UTCGHSA enrichment
  14. 2026-06-24 14:05 UTCEPSS rescore
  15. 2026-06-23 21:33 UTCEPSS rescore
  16. 2026-06-23 21:33 UTCEPSS rescore
  17. 2026-06-22 14:25 UTCEPSS rescore
  18. 2026-06-22 14:25 UTCEPSS rescore
  19. 2026-06-21 14:56 UTCEPSS rescore
  20. 2026-06-21 14:56 UTCEPSS rescore
  21. 2026-06-21 01:59 UTCEPSS rescore
  22. 2026-06-21 01:59 UTCEPSS rescore
  23. 2026-06-19 19:26 UTCEPSS rescore
  24. 2026-06-19 19:26 UTCEPSS rescore
  25. 2026-06-19 15:13 UTCNVD update
  26. 2026-06-18 17:52 UTCEPSS rescore
  27. 2026-06-18 17:52 UTCEPSS rescore
  28. 2026-06-17 17:53 UTCEPSS rescore
  29. 2026-06-16 17:52 UTCEPSS rescore
  30. 2026-06-15 17:49 UTCEPSS rescore
  31. 2026-06-15 14:50 UTCVendor advisory
  32. 2026-06-15 14:50 UTCGHSA enrichment
  33. 2026-06-14 23:28 UTCMITRE cvelistV5
  34. 2026-06-13 23:00 UTCEPSS rescore
  35. 2026-06-12 23:12 UTCEPSS rescore
  36. 2026-06-12 23:12 UTCEPSS rescore
  37. 2026-06-12 16:58 UTCVendor advisory
  38. 2026-06-12 16:58 UTCGHSA enrichment
  39. 2026-06-11 14:00 UTCEPSS rescore
  40. 2026-06-10 22:18 UTCEPSS rescore
  41. 2026-06-10 13:22 UTCEPSS rescore
  42. 2026-06-10 13:22 UTCEPSS rescore
  43. 2026-06-09 19:06 UTCGHSA enrichment
  44. 2026-06-08 14:17 UTCEPSS rescore
  45. 2026-06-08 14:17 UTCEPSS rescore
  46. 2026-06-07 15:25 UTCEPSS rescore
  47. 2026-06-07 15:25 UTCEPSS rescore
  48. 2026-06-06 21:14 UTCGHSA enrichment
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-05 22:47 UTCEPSS rescore
  52. 2026-06-05 06:10 UTCEPSS rescore
  53. 2026-06-05 06:10 UTCEPSS rescore
  54. 2026-06-04 13:12 UTCEPSS rescore
  55. 2026-06-04 13:12 UTCEPSS rescore
  56. 2026-06-03 23:22 UTCGHSA enrichment
  57. 2026-06-02 20:13 UTCEPSS rescore
  58. 2026-06-01 13:52 UTCEPSS rescore
  59. 2026-06-01 13:52 UTCEPSS rescore
  60. 2026-06-01 01:30 UTCEG score recompute
  61. 2026-06-01 01:30 UTCGHSA enrichment
  62. 2026-05-31 22:30 UTCEPSS rescore
  63. 2026-05-31 22:30 UTCEPSS rescore
  64. 2026-05-31 00:16 UTCEPSS rescore
  65. 2026-05-31 00:16 UTCEPSS rescore
  66. 2026-05-29 13:44 UTCEPSS rescore
  67. 2026-05-29 13:44 UTCEPSS rescore
  68. 2026-05-28 13:44 UTCEPSS rescore
  69. 2026-05-28 13:44 UTCEPSS rescore
  70. 2026-05-27 14:07 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-46103?
CVE-2026-46103 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: can: ucan: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers…
When was CVE-2026-46103 disclosed?
CVE-2026-46103 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46103 actively exploited?
CVE-2026-46103 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46103?
CVE-2026-46103 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46103?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46103, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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